Meeting C++ 2025 - Unlocking the Value of C++20 Features

Alex Dathskovsky

On Day 2 at 17:15 (CET/Berlin) in Track B [Opal Room and online]

With C++23 already making headlines and C++26 on the horizon, it’s tempting to focus on the bleeding edge. But in practice, many companies are still navigating the shift to C++20 — not beyond it. This talk is designed to help developers make the most of this pivotal transition.

While the "big four" features of C++20 — concepts, coroutines, ranges, and modules — often steal the spotlight, there’s a rich set of lesser-known but immensely useful additions that can dramatically improve the way we write modern C++.

In this session, we’ll go beyond the headlines and dive into the real-world power of C++20. Using practical examples, we’ll explore improvements to constexpr, enhanced lambdas, the spaceship operator, consteval, templated lambdas, and more — all the features that silently unlock better performance, maintainability, and expressiveness.

Whether you’re still on C++17 or already experimenting with C++20, this talk will bridge the gap between potential and practice — and get you ready for what’s next.

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